Compilare: user.cpp: In function ‘void solve()’: user.cpp:120:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int q=0;q<v[pr].size();++q) ^ user.cpp:155:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<d.size();++i){ ^ user.cpp:157:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int q=0;q<v[pr].size();++q) ^ user.cpp: In function ‘int main()’: user.cpp:173:16: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f>>c[i]+1; ^